I would buy only Hue but that's because I have more money than sense, and they don't actually make smart plugs last time I looked, they make plugs but label them all as lights in the app, which is more annoying than it sounds.
The real problem to solve ditching TP-Link _routers_ is that all routers are uniformly fucking awful, and all you are doing is choosing your particular poison. This is especially true after Apple exited the game so long ago. I use Google Wifi because it mostly works most of the time, but that's not glowing praise. But the world has become trained that rebooting a router once a week and praying that it works when it comes back is a perfectly normal state of affairs and we couldn't possibly do this any better.